Abstract
Purpose To compare the relative clinical efficacy of preoperative computed tomography (CT)-guided methylene-blue (MB) and coil localization for lung nodules (LNs). Material and methods Between January 2013 and December 2018, a total of 89 patients with LNs underwent CT-guided MB or coil localization and subsequent video-assisted thoracoscopic surgery (VATS)-guided wedge resection in our hospital. We compared the technical success of localization and wedge resection between two groups. Results In MB group, 47 LNs in 39 patients were localized, with successful localization and wedge resection rates of 97.9% and 97.9%, respectively. In the coil group, 64 LNs in 50 patients were localized, with successful localization and wedge resection rates of 96.9% and 96.9%, respectively. There were no significant differences in technical success rates of localization and wedge resection between the two groups (p = 1.000 and 1.000). The coil group sustained a longer duration between localization and VATS relative to the MB group (14.4 h vs. 1.6 h, p = .001). Conclusion Both MB and coil localization were safe and effective techniques to establish a high success rate of VATS-guided wedge resection for LNs. Relative to MB localization, coil localization might be compatible with a longer delay between localization and VATS.
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